<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文件上传Demo</title>
</head>
<body>
<h2>单文件上传示例</h2>
<div>
    <form method="POST" enctype="multipart/form-data" action="/upload">
        <p>
            文件：<input type="file" name="file"/>
            <input type="submit" value="上传"/>
        </p>
    </form>
</div>
</body>
</html>